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A star that exploded like a nuclear bomb is still raising questions half a century later

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The consequences of a thermonuclear explosion in a binary star system about 3,400 light years away has been witnessed by Hubble Space Telescope. HM Sagittae, or HM Sge for short, is what is known as a symbiotic system, in which a white dwarf is eating with a friend red giant star The stolen material forms … Read more

‘Once-in-a-lifetime’ nova explosion will bring new star to night sky, NASA says

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Astronomers expect a “new star” to appear in the night sky anytime between now and September in a celestial event that has been years in the making, according to NASA. “It’s a once-in-a-lifetime event that will create a lot of young astronomers out there, giving young people a cosmic event they can observe for themselves, … Read more